Clinical Outcomes of Two Symmetrical Kera-rings Implantation in Grade Three Keratoconus

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

23 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-01

Study Completion Date

2024-01-10

Brief Summary

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Clinical Outcomes of Two Symmetrical Kera-rings Implantation in Grade Three Keratoconus

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Detailed Description

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a retrospective non- randomized controlled clinical study. The study included twenty-three grade 3 keratoconic eyes of twenty-three patients, the keratoconus staging was based on Amsler-Krumeich classification The ICRS surgery was performed with the patient under topical anesthesia. A tunnel channel was created by femtosecond laser using a 60-kHz infrared neodymium glass femtosecond laser at a wavelength of 1053 nm (Abbott Laboratories Inc., Abbott Park, Illinois, USA). Two symmetrical kerarings (Mediphacos Inc., Belo Horizonte, Brazil), were implanted in all cases with 160° arc and 0.25, 0.30 mm according to corneal thickness in implantation site. After surgery, the patients had a full ocular evaluation on days 1, 7, and 14, and again after a month. For a period of 1-year, corneal topography readings were taken quarterly.

Conditions

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Cornea Ectasia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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grade 3 keratoconic eyes Grade 3 eyes with stable keratoconus

Group Type OTHER

Intracorneal rings

Intervention Type DEVICE

The (ICRS), intracorneal rings segments implantation surgery

Interventions

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Intracorneal rings

The (ICRS), intracorneal rings segments implantation surgery

Intervention Type DEVICE

Other Intervention Names

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INTACS

Eligibility Criteria

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Inclusion Criteria

* stable keratoconus.
* corneal cross-linking performed at least 6 months.
* contact lens intolerance
* minimum corneal thickness of 350 μm at the thinnest point (TP)
* mean keratometry (K mean) value less than 59 D